package com.hama.zea.util;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.StringReader;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.filefilter.AndFileFilter;
import org.apache.commons.io.filefilter.DirectoryFileFilter;
import org.apache.commons.io.filefilter.IOFileFilter;
import org.apache.commons.io.filefilter.NotFileFilter;
import org.apache.commons.io.filefilter.SuffixFileFilter;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class FileToolkit {
	
	private static final Log log = LogFactory.getLog(FileToolkit.class);

    /** 
     * 复制文件或者目录,复制前后文件完全一样。 
     * 
     * @param resFilePath 源文件路径 
     * @param distFolder    目标文件夹 
     * @IOException 当操作发生异常时抛出 
     */ 
    public static void copyFile(String resFilePath, String distFolder) throws IOException { 
            File resFile = new File(resFilePath); 
            File distFile = new File(distFolder); 
            if (resFile.isDirectory()) { 
                    FileUtils.copyDirectoryToDirectory(resFile, distFile); 
            } else if (resFile.isFile()) { 
                    FileUtils.copyFileToDirectory(resFile, distFile, true); 
            } 
    }

    /** 
     * 删除一个文件或者目录 
     * 
     * @param targetPath 文件或者目录路径 
     * @IOException 当操作发生异常时抛出 
     */ 
    public static void deleteFile(String targetPath) throws IOException { 
            File targetFile = new File(targetPath); 
            if (targetFile.isDirectory()) { 
                    FileUtils.deleteDirectory(targetFile); 
            } else if (targetFile.isFile()) { 
                    targetFile.delete(); 
            } 
    }

    /** 
     * 移动文件或者目录,移动前后文件完全一样,如果目标文件夹不存在则创建。 
     * 
     * @param resFilePath 源文件路径 
     * @param distFolder    目标文件夹 
     * @IOException 当操作发生异常时抛出 
     */ 
    public static void moveFile(String resFilePath, String distFolder) throws IOException { 
            File resFile = new File(resFilePath); 
            File distFile = new File(distFolder); 
            if (resFile.isDirectory()) { 
                    FileUtils.moveDirectoryToDirectory(resFile, distFile, true); 
            } else if (resFile.isFile()) { 
                    FileUtils.moveFileToDirectory(resFile, distFile, true); 
            } 
    }


    /** 
     * 重命名文件或文件夹 
     * 
     * @param resFilePath 源文件路径 
     * @param newFileName 重命名 
     * @return 操作成功标识 
     */ 
    public static boolean renameFile(String resFilePath, String newFileName) { 
            String newFilePath = StringToolkit.formatPath(StringToolkit.getParentPath(resFilePath) + "/" + newFileName); 
            File resFile = new File(resFilePath); 
            File newFile = new File(newFilePath); 
            return resFile.renameTo(newFile); 
    }

    /** 
     * 读取文件或者目录的大小 
     * 
     * @param distFilePath 目标文件或者文件夹 
     * @return 文件或者目录的大小，如果获取失败，则返回-1 
     */ 
    public static long genFileSize(String distFilePath) { 
            File distFile = new File(distFilePath); 
            if (distFile.isFile()) { 
                    return distFile.length(); 
            } else if (distFile.isDirectory()) { 
                    return FileUtils.sizeOfDirectory(distFile); 
            } 
            return -1L; 
    }

    /** 
     * 判断一个文件是否存在 
     * 
     * @param filePath 文件路径 
     * @return 存在返回true，否则返回false 
     */ 
    public static boolean isExist(String filePath) { 
            return new File(filePath).exists(); 
    }

    /** 
     * 本地某个目录下的文件列表（不递归） 
     * 
     * @param folder ftp上的某个目录 
     * @param suffix 文件的后缀名（比如.mov.xml) 
     * @return 文件名称列表 
     */ 
    public static String[] listFilebySuffix(String folder, String suffix) { 
            IOFileFilter fileFilter1 = new SuffixFileFilter(suffix); 
            IOFileFilter fileFilter2 = new NotFileFilter(DirectoryFileFilter.INSTANCE); 
            FilenameFilter filenameFilter = new AndFileFilter(fileFilter1, fileFilter2); 
            return new File(folder).list(filenameFilter); 
    }

    /** 
     * 将字符串写入指定文件(当指定的父路径中文件夹不存在时，会最大限度去创建，以保证保存成功！) 
     * 
     * @param res            原字符串 
     * @param filePath 文件路径 
     * @return 成功标记 
     */ 
<<<<<<< HEAD
    public static boolean string2File(String res, String filePath) {
=======
    public static boolean string2File(String res, String filePath) { 
>>>>>>> 9cf79cd622363484742276c1324b9c391da58684
            boolean flag = true; 
            BufferedReader bufferedReader = null; 
            BufferedWriter bufferedWriter = null; 
            try { 
                    File distFile = new File(filePath); 
                    if (!distFile.getParentFile().exists()) distFile.getParentFile().mkdirs(); 
                    bufferedReader = new BufferedReader(new StringReader(res)); 
                    bufferedWriter = new BufferedWriter(new FileWriter(distFile)); 
                    char buf[] = new char[1024];         //字符缓冲区 
                    int len; 
                    while ((len = bufferedReader.read(buf)) != -1) { 
                            bufferedWriter.write(buf, 0, len); 
                    } 
                    bufferedWriter.flush(); 
                    bufferedReader.close(); 
                    bufferedWriter.close(); 
            } catch (IOException e) { 
                    flag = false; 
                    e.printStackTrace(); 
            } 
            return flag; 
    } 
}
